pnuematic wheels

[gorrilla]

well i was thinking about having 2 on each side with one in the center and one in the back with casters in the front that way we would have traction and still turn easy

[Dick Linn]

Team 975's 2006 ball-picker-upper used a short wheelbase 4 wheel drive with HDPE skids on one end where the balls were sucked up. The skids were there for stability and to ensure maximum frontal area for the ball conveyor. I don't recall the exact wheelbase, but it was pretty short. It had great traction - we and another 'bot got in a pushing match and both bots flipped over backwards once. It also bucked quite a bit when turning, which made a great ball agitator. It went up the ramp fairly well, though I forget which orientation worked out.

Got a Motorola Quality Award at the VCU regional

http://www.chiefdelphi.com/forums/at...d=122280513 3

[Jeff Pahl]

We used a pair of these from Northern Tool in 2005: http://www.northerntool.com/webapp/w...9624_200199624 after using the KOP wheels in 2004. These are 8" solid rubber, and they have a 12" penumatic version also. We've experimented with the pneumatic wheels, and found it was too hard to keep the pressure exactly right to keep them both the same diameter, and also if they are not inflated enough the rolling resistance gets too high.